Plant Parasites of Europe

leafminers, galls and fungi

Agromyza polygoni

Agromyza polygoni Hering, 1941

on Bistorta


Initially a narrow corridor, that widens into an elongated blotch. Frass at first very fine, later in coarse granules. Often the mines are conspicuously coloured violet red (Buhr, 1964a); they mainly occur in the lower leaves (Hering, 1941a).


Polygonaceae, monophagous

Bistorta officinalis.


Larvae in July (Hering, 1957a).

distribution within Europe

From the Baltic States to France (cf. PESI, 2018).


The larvae are described by de Meijere, as Agromyza sp. (1937a: 174;1938a: 67). Anterior spiraculum with ± 10 papillae.


Beiger (1970a), Buhr (1964a), Černý & Merz (2005a, 2007a), Hering (1941a, 1957a), Huber (1969a), de Meijere (1937a, 1938a), Pakalniškis (1995a), Papp & Černý (2015a), Seidel (1957a), von Tschirnhaus (1999a), Winqvist, Černý & Andersen (2020a).

Last modified 15.i.2022